Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Quartz from
Brandlehow Mine, Catbells, Borrowdale, Allerdale, Cumbria, England, UK


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Brandlehow Mine, Catbells, Borrowdale, Allerdale, Cumbria, England, UK
Data Identifiers
Mindat Occurrence Record ID:17426
Long-form Identifier:1:3:17426:2
GUID (UUID V4):0
Nearest other occurrences of Quartz
0.9km (0.5 miles) ⓘOld Brandley Mine, Above Derwent, Allerdale, Cumbria, England, UK
0.9km (0.6 miles) ⓘYewthwaite Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK
2.5km (1.5 miles) ⓘGoldscope Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK
2.5km (1.5 miles) ⓘStoneycroft Mine, Above Derwent, Allerdale, Cumbria, England, UK
2.8km (1.8 miles) ⓘBarrow Mine, Above Derwent, Allerdale, Cumbria, England, UK
3.5km (2.2 miles) ⓘCastle Nook Mine, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK
4.5km (2.8 miles) ⓘCobalt Mine, Scar Crag, Causey Pike, Above Derwent, Allerdale, Cumbria, England, UK
4.6km (2.8 miles) ⓘScar Crags, Coledale, Above Derwent, Allerdale, Cumbria, England, UK
5.1km (3.1 miles) ⓘDale Head North, Newlands Valley, Above Derwent, Allerdale, Cumbria, England, UK
5.4km (3.3 miles) ⓘForce Crag Mine, Coledale, Above Derwent, Allerdale, Cumbria, England, UK
References
Day, Harry (1999) BMS Database, British Micromount Society.
 
and/or  
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